Following McGregor's takeaway, McGregor mentioned his frustration on social media but then chose to crash the UFC 223 media event in, reportedly, a response for another incident that happened between his ally Artem Lobov and Nurmagomedov. Cowley was involved in the incident and has been charged with one count of assault and one count criminal mischief.
McGregor went berserk at the arena following a press conference Thursday hyping the event. Multiple videos of this attack were taken and McGregor can be seen breaking a window of one of the buses with a dolly.
If former UFC champion McGregor is looking for help from the organisation, he is out of luck, UFC president Dana White said on Friday. The incident was apparently McGregor's way of having his boy's back, after his friend Artem Lobov got into a scuffle with another UFC fighter, Khabib Nurmagomedov earlier this week.
The window smashed by McGregor on the bus had lightweight Michael Chiesa sat on the other side, who was cut and subsequently has been forced to withdraw from his bout with Anthony Pettis.
CONOR McGREGOR'S manager has launched a fierce defence of a "fiercely loyal friend" after the UFC fighter was arrested.
"What the fuck", Chiesa said in the video, as blood ran down his face. Attar said McGregor is looking forward to fighting as soon as possible.More news: Vatican Arrests Monsignor on Suspicion of Possessing Child Pornography
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Both men had been on the "red corner" bus that had been attacked by McGregor and several of his crew on Thursday afternoon and, 24 hours later, they had been pitched together.
After his hearing, McGregor posted $50,000 bond for his release, where he did not have to give up his passport.
McGregor was charged with felony criminal mischief and misdemeanor counts of assault, attempted assault, menacing and reckless endangerment.
White was making a television appearance where he was asked about whether or not he had had any contact with the Irish fighter and he revealed he hadn't spoken to him but the pair exchanged text messages.
Lobov has also been removed from the bill, due to his alleged involvement. He's out of jail on bail and is due back in court in June.
McGregor (21-3) last fought for UFC in November 2016, when he won the lightweight (155-pound) championship, according to Bleacher Report. He made the biggest payday of his career in a boxing match with Floyd Mayweather in August and has not fought since. McGregor profanely responded on Twitter and wrote, "You'll strip me of nothing". Why do you need to come here and show up like you want to fight?